Component Technology
biologic™ joule dynamo hub
2005
There's nothing we like better than clean energy. A hub dynamo is the most efficient way to generate electricity for your bike light. The hub is embedded with a dynamo that generates electricity while you ride. The Joule hub features a polished aluminum hub shell and is made to our 74 mm compact width specifications. It is one of the lightest and most efficient hub dynamos on the market.